Mosby's 2014 Nursing Drug Reference (366 page)

BOOK: Mosby's 2014 Nursing Drug Reference
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Canada only   Side effects:
italics
= common;
bold
= life-threatening   
Nurse Alert

selenium topical

 

sertraline (Rx)

(ser′tra-leen)

Zoloft

Func. class.:
Antidepressant

Chem. class.:
SSRI

Do not confuse:
Zoloft
/Zocor

ACTION:

Inhibits serotonin reuptake in CNS; increases action of serotonin; does not affect dopamine, norepinephrine

USES:

Major depressive disorder, obsessive-compulsive disorder (OCD), posttraumatic stress disorder (PTSD), panic disorder, social anxiety disorder, premenstrual dysphoric disorder (PMDD)

Unlabeled uses:
Premature ejaculation, pruritus with cholestatic liver disease, hot flashes during menopause, breast cancer patients taking tamoxifen; men with prostate cancer secondary to androgen-deprivation therapy

CONTRAINDICATIONS:

Hypersensitivity to this product or SSRIs

Precautions:
Pregnancy (C), breastfeeding, geriatric patients, renal/hepatic disease, epilepsy, recent MI, latex sensitivity (dropper of oral conc)

 

Black Box Warning:

Children, suicidal ideation

DOSAGE AND ROUTES
Calculator
Major depression/OCD

• Adult/geriatric patient/adolescent (unlabeled):
PO
25-50 mg/day; may increase to max of 200 mg/day; do not change dose at intervals of <1 wk; administer daily in
AM
or
PM

• Child 6-12 yr (unlabeled):
PO
25 mg/day, increase by 25-50 mg/wk

Premenstrual dysphoric disorder

• Adult:
PO
50-150 mg nightly

Premature ejaculation (unlabeled)

• Adult:
PO
50 mg/day

Pruritus (unlabeled)

• Adult:
PO
50-100 mg/day

Hot flashes (unlabeled)

• Adult:
PO
50 mg/day × 4 wk; men with prostate cancer (androgen deprivation), 50-100 mg/day

Hepatic dose

• Adult:
PO
Use lower dose or less frequent dosing intervals

Available forms:
Tabs 25, 50, 100 mg; oral sol 20 mg/ml

Administer:

• 
Increased fluids, bulk in diet for constipation, urinary retention

• 
With food, milk for GI symptoms

• 
Crushed if patient is unable to swallow medication whole

• 
Sugarless gum, hard candy, frequent sips of water for dry mouth

• 
Oral conc:
dilute before use with 4 oz (1/2 cup) of water, orange juice, ginger ale, or lemon/lime soda; do not mix with other liquids

• 
Avoid use with other CNS depressants

SIDE EFFECTS

CNS:
Insomnia, agitation, somnolence, dizziness, headache, tremor, fatigue
, paresthesia, twitching, confusion, ataxia, gait abnormality (geriatric patients),
seizures, neuroleptic malignant-syndrome–like reaction, serotonin syndrome, suicidal ideation

CV:
Palpitations, chest pain

EENT:
Vision abnormalities, yawning

ENDO:
SIADH (geriatric patients)

GI:
Diarrhea, nausea, constipation, anorexia, dry mouth
, dyspepsia,
vomiting, flatulence
, weight gain/loss

GU:
Male sexual dysfunction
, micturition disorder

INTEG:
Increased sweating, rash, hot flashes

MISC:
Hyponatremia

PHARMACOKINETICS

PO:
Peak 4.5-8.4 hr; steady state 1 wk; plasma protein binding 98%; elimination half-life 26 hr; extensively metabolized; metabolite excreted in urine, bile; weak inhibitor of CYP3A4, moderate inhibitor of CYP2D6

INTERACTIONS

• 
Altered lithium levels: lithium

• 
Disulfiram reaction: disulfiram and oral conc due to alcohol content

 
Fatal reactions: MAOIs, pimozide

Increase:
sertraline levels—cimetidine, warfarin, other highly protein-bound products

Increase:
effects of antidepressants (tricyclics), diazepam, TOLBUTamide, warfarin, benzodiazepines, SUMAtriptan, phenytoin, cloZAPine

Increase:
bleeding risk—anticoagulants, NSAIDs, thrombolytic, platelet inhibitors, salicylates

Increase:
serotonin syndrome, neuroleptic malignant syndrome—SSRIs, SNRIs, serotonin-receptor agonists, tricyclics, sibutramine, traZODone, busPIRone, linezolid, traMADol

Drug/Herb

Increase:
of SSRI, serotonin syndrome—St. John’s wort, SAM-e, tryptophan; do not use together

Increase:
CNS effect—kava kava, valerian

Drug/Lab Test

Increase:
AST, ALT

False positive:
urine screen for benzodiazepines

NURSING CONSIDERATIONS
Assess:

 

Black Box Warning:

Mental status: mood, sensorium, affect, suicidal tendencies (child/young adult), increase in psychiatric symptoms, depression, panic attacks, OCD, PTSD, social anxiety disorder

 
S
erotonin syndrome
(hyperthermia, hypertension, rigidity, delirium, coma, myoclonus) or neuroleptic malignant-like syndrome (muscle cramps, fever, unstable B/P, agitation, tremors, mental changes)

 
Bleeding
(platelet serotonin depletion): GI bleeding, ecchymoses, epistaxis, hematomas, petechiae, hemorrhage

• 
LFTs at baseline and periodically

• 
B/P (lying/standing), pulse q4hr; if systolic B/P drops 20 mm Hg, hold product, notify prescriber; VS q4hr in patients with CV disease

• 
Weight q wk; appetite may decrease with product

• 
Urinary retention, constipation, especially in geriatric patients

• 
Alcohol consumption; hold dose until morning

Perform/provide:

• 
Storage at room temp; do not freeze

Evaluate:

• 
Therapeutic response: significant improvement in depression, OCD

Teach patient/family:

• 
That therapeutic effect may take ≥1 wk

• 
To use caution when driving, performing other activities requiring alertness because drowsiness, dizziness, blurred vision may occur

• 
Not to discontinue medication quickly after long-term use; may cause nausea, headache, malaise

• 
To avoid alcohol

• 
May be taken without regard to food

• 
Serotonin syndrome:
agitation, nausea, vomiting, diarrhea, twitching, sweating, shivering; report to prescriber immediately

• 
To notify prescriber if pregnant or if planning to become pregnant, pregnancy (C) or breastfeed

 

Black Box Warning:

That suicidal thoughts/behaviors may occur in children/adolescents

Canada only   Side effects:
italics
= common;
bold
= life-threatening   
Nurse Alert

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